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halfway through my headgasket job and found valve diviots in my pistons

Old Mar 11, 2011 | 09:51 AM
  #1  
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Unhappy halfway through my headgasket job and found valve diviots in my pistons

Well, the title says it all. Any suggestions for what I should do? The car was running before I pulled the engine apart to replace my headgasket.

Thanks
Old Mar 11, 2011 | 11:33 AM
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A set of new pistond arnt that expensive I guess u can continue to use them but its affects ur compression and performance.
Old Mar 11, 2011 | 12:33 PM
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Pics?
Old Mar 11, 2011 | 12:43 PM
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Will post pics tomorrow
Old Mar 12, 2011 | 10:58 AM
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Here are the pictures, I did one with a penny to help show how deep it is and all the pistons seem to have identical markings. Let me know what you think

Thanks
Attached Thumbnails halfway through my headgasket job and found valve diviots in my pistons-piston.jpg   halfway through my headgasket job and found valve diviots in my pistons-piston-coin.jpg  
Old Mar 12, 2011 | 11:33 AM
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Im trying not laugh right now. but thats how's the pistons are supposed to be. Nothing to worry abt. They are there to give the valves some wiggle room or something like that.
Old Mar 12, 2011 | 11:48 AM
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Heh ok, great! Can you tell this is my first rebuild yet? I always get worried when I run into things like this.

Thanks
Old Mar 12, 2011 | 11:50 AM
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Np gl with the rest of ur rebuild.
Old Mar 12, 2011 | 01:25 PM
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This is why you should have more information in your posts. If we had known you have an NA, we could have told you before you posted pictures. You didn't find it the least bit odd that all 6 pistons have the same reliefs cut in them in exactly the same manner?
Old Mar 12, 2011 | 04:07 PM
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While I probably should have posted more info, I didn't even think that the turbo and n/a would have different pistons. But you know, that's alright, as I know now.

Thanks
Old Mar 12, 2011 | 06:16 PM
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Yes. The turbo pistons are dished and do not contain relief cuts. It's the reason they are 7.8:1 or 8.3:1 compression vs the NA 9.0:1 compression.

Hey. You're learning.
Old Mar 12, 2011 | 08:54 PM
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I don't think I've ever seen az-zbum put down a smiley face....

Last edited by Flacster; Mar 18, 2011 at 10:49 AM.
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